92 Dr. CollingwooDj on Microscopic Alga. 



over, Hind's specimens were immediately referred to a new- 

 species. 



Next to the China Sea, the coast of Australia appears to 

 be the favourite locality for this Alga, though there seems, 

 indeed, to be scarcely any part in the world in which it may 

 not be seen in greater or less abundance. 



